n = 123
f = 456.789
s1 = 'hello,world'
s2 = 'hello,\'Adam\''
s3 = r'hello,"Bart"'
s4 = r'''hello,
Lisa!'''
print('n',n)
print('f',f)
print('s1',s1)
print('s2',s2)
print('s3',s3)
print('s4',s4)